CN205001708U - 6 tonne pneumatic tyred excavator uses central swivel joint - Google Patents
6 tonne pneumatic tyred excavator uses central swivel joint Download PDFInfo
- Publication number
- CN205001708U CN205001708U CN201520655802.6U CN201520655802U CN205001708U CN 205001708 U CN205001708 U CN 205001708U CN 201520655802 U CN201520655802 U CN 201520655802U CN 205001708 U CN205001708 U CN 205001708U
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- Prior art keywords
- axial
- turning axle
- annular
- seal ring
- gas tank
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Abstract
The utility model relates to a 6 tonne pneumatic tyred excavator uses central swivel joint belongs to excavator drive disk assembly field, turn round epaxial rotary casing including revolving axle and cover, gyration casing top is provided with the end cover, be provided with a plurality of axial oil grooves and axial gas tank in the revolving axle, the gyration is provided with a plurality of annular oil groove and annular gas tanks that communicate with axial oil groove and axial gas tank respectively on the shells inner wall, every annular oil groove and annular gas tank both sides all are provided with the rotatory combined seal ring of high pressure, be equipped with the rotatory combined seal ring of twice high pressure between the adjacent two rings shape gas tank, and be equipped with the hoop lubrication groove between the rotatory combined seal ring of twice high pressure, be equipped with axial draining hole on the revolving axle, axial draining hole and hoop lubrication groove intercommunication. The utility model discloses the sealing washer that makes the gas circuit becomes lubricated friction by the dry friction, extension sealing member life, and the top is adjusted to to the gas circuit, and gas circuit inlet line is supreme by down, and inside getting rusty is not avoided connecting inside can not flowing the casing by ponding.
Description
Technical field
The utility model belongs to excavator drive components field, is specifically related to a kind of 6 tonnes of wheeled excavator center-rotary joints.
Background technique
Relative rotation motion is done with top body in wheeled excavator chassis, the supply of hydraulic circuit time center-rotary joint is to ensure to do rotation motion.When digger revolving action, by central joint, hydraulic oil is flowed to running motor.Plain tubing is difficult to the effect accomplished as central joint.If but center-rotary joint seals the bad situation that fluid seepage will occur.There is radial unbalance loading in excavator, cause center-rotary joint turning axle and revolving shell disalignment, wearing and tearing are increased in real work, and the compression of product inner seal ring is unbalanced, thus form fluid seepage.In rotary course, the shaft shoulder of turning axle and the end face phase mutual friction of revolving shell, because turning axle material is 45# steel, wear no resistance, and wearing and tearing are too fast, cause life of product to shorten.Have suitable play gap between turning axle and revolving shell, excavator work under bad environment, gap location easily enters dust and fine particle causes internal contamination.Air flue Sealing and turning axle are dry friction, easily cause the wearing and tearing of Sealing even to lose efficacy.
Model utility content
For solving above technical deficiency, the utility model provides a kind of air flue Sealing and becomes lubrication friction from dry friction, 6 tonnes of wheeled excavator center-rotary joints of long service life.
The utility model 6 tonnes of wheeled excavator center-rotary joints, comprise turning axle and be enclosed within the revolving shell on turning axle, end cap is provided with above revolving shell, revolution shaft lower end is provided with the shaft shoulder, some axial oil grooves and axial air drain is provided with in turning axle, described revolving shell inwall is provided with some annular oil grooves of being communicated with axial air drain with axial oil groove respectively and annular gas tank, each annular oil groove and annular gas tank both sides are provided with high-pressure rotational combined seal ring, twice high-pressure rotational combined seal ring is provided with between adjacent two annular gas tanks, and be provided with hoop lubrication groove between twice high-pressure rotational combined seal ring, turning axle is provided with axial oil leak hole, axial oil leak hole is communicated with hoop lubrication groove.
Annular gas tank is arranged on the top of revolving shell, and annular oil groove is arranged on the bottom of revolving shell, and from the bottom to top, ponding can not flow to enclosure interior to gas circuit entrance pipe, avoids joint internal rust.
Revolving shell inwall two ends are provided with low pressure O RunddichtringO, can effectively avoid exosmosing of drain tap fluid.
Be provided with support ring inside the low pressure O RunddichtringO of lower end, prevent seal ring to compress the unbalanced fluid leakage problems caused.
End cap lower end surface contacts with turning axle upper-end surface, and end cap and turning axle are connected by screw, and can carry out axially locating to revolving shell, and simply, dimension chain calculating is simple, and tolerance is easy to control for Placement and axially locating mode.
The shaft shoulder face of turning axle is provided with circular groove, is coated with lubricating grease in circular groove, and revolving shell and axial end become lubrication friction from dry friction and have dust-proof effect to inner seal, extends the working life of center-rotary joint.
Compared with prior art, the utility model has the advantage of:
1, be provided with hoop lubrication groove, make the seal ring of gas circuit become lubrication friction from dry friction, extend seal durability, become two roads from one high-pressure rotational combined seal ring, more effectively avoid fluid to leak in air flue and alter problem mutually between air flue; 2, gas circuit adjusts to top, and oil circuit is in below, and from the bottom to top, ponding can not flow to enclosure interior to gas circuit entrance pipe, avoids joint internal rust; 3, increase support ring, prevent seal ring to compress the unbalanced fluid leakage problems caused; The turning axle end face of 4, revolving shell contact arranges circular groove, and housing and axial end become lubrication friction from dry friction and have dust-proof effect to inner seal, prolongation swivel coupling working life; 5, revolving shell upper end is provided with end cap, and end cap is connected with turning axle screw, and simply, dimension chain calculating is simple, and tolerance is easy to control for its Placement and axially locating mode.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, turning axle, 2, revolving shell, 3, annular oil groove, 4, annular gas tank, 5, end cap, 6, circular groove, 7, low pressure O RunddichtringO, 8, support ring, 9, oil leak hole, 10, hoop lubrication groove, 11, high-pressure rotational combined seal ring.
Embodiment
Contrast accompanying drawing below, embodiment of the present utility model is described in further detail.
6 tonnes of wheeled excavator center-rotary joints as shown in Figure 1, the revolving shell 2 comprising turning axle 1 and be enclosed within turning axle 1, end cap 5 is provided with above revolving shell 2, turning axle 1 lower end is provided with the shaft shoulder, some axial oil grooves and axial air drain is provided with in turning axle 1, described revolving shell 2 inwall is provided with some annular oil grooves 3 of being communicated with axial air drain with axial oil groove respectively and annular gas tank 4, each annular oil groove 3 and annular gas tank 4 both sides are provided with high-pressure rotational combined seal ring 11, twice high-pressure rotational combined seal ring 11 is provided with between adjacent two annular gas tanks 4, and be provided with hoop lubrication groove 10 between twice high-pressure rotational combined seal ring 11, turning axle 1 is provided with axial oil leak hole 9, axial oil leak hole 9 is communicated with hoop lubrication groove 10.
Annular gas tank 4 is arranged on the top of revolving shell 2, and annular oil groove 3 is arranged on the bottom of revolving shell 2, and from the bottom to top, ponding can not flow to joint inside to gas circuit entrance pipe, avoids joint internal rust.
Revolving shell 2 inwall two ends are provided with low pressure O RunddichtringO 7, can effectively avoid exosmosing of drain tap fluid.
Be provided with support ring 8 inside the low pressure O RunddichtringO 7 of lower end, prevent seal ring to compress the unbalanced fluid leakage problems caused.
End cap 5 lower end surface contacts with turning axle 1 upper-end surface, and end cap 5 and turning axle 1 are connected by screw, and can carry out axially locating to revolving shell 2, and simply, dimension chain calculating is simple, and tolerance is easy to control for Placement and axially locating mode.
The shaft shoulder face of turning axle 1 is provided with circular groove 6, is coated with lubricating grease in circular groove 6, and revolving shell 2 and shaft shoulder end face become lubrication friction from dry friction and have dust-proof effect to inner seal, extends the working life of center-rotary joint.
In sum, the utility model is provided with hoop lubrication groove, makes the seal ring of gas circuit become lubrication friction from dry friction, extends seal durability, become two roads from one high-pressure rotational combined seal ring, more effectively avoid fluid to leak in air flue and alter problem mutually between air flue; Gas circuit adjusts to top, and oil circuit is in below, and from the bottom to top, ponding can not flow to enclosure interior to gas circuit entrance pipe, avoids joint internal rust; Increase support ring, prevent seal ring to compress the unbalanced fluid leakage problems caused; The turning axle end face of revolving shell contact arranges circular groove, and housing and axial end become lubrication friction from dry friction and have dust-proof effect to inner seal, prolongation swivel coupling working life; Revolving shell upper end is provided with end cap, and end cap is connected with turning axle screw, and simply, dimension chain calculating is simple, and tolerance is easy to control for its Placement and axially locating mode.
In description of the present utility model, term " interior ", " outward ", " longitudinal direction ", " transverse direction ", " on ", D score, " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, it is only the utility model instead of require that the utility model with specific azimuth configuration and operation, therefore can not must be interpreted as restriction of the present utility model for convenience of description.
Claims (6)
1. 6 tonnes of wheeled excavator center-rotary joints, comprise turning axle (1) and be enclosed within the revolving shell (2) on turning axle (1), revolving shell (2) top is provided with end cap (5), turning axle (1) lower end is provided with the shaft shoulder, some axial oil grooves and axial air drain is provided with in turning axle (1), described revolving shell (2) inwall is provided with some annular oil grooves (3) of being communicated with axial air drain with axial oil groove respectively and annular gas tank (4), each annular oil groove (3) and annular gas tank (4) both sides are provided with high-pressure rotational combined seal ring (11), it is characterized in that: between adjacent two annular gas tanks (4), be provided with twice high-pressure rotational combined seal ring (11), and be provided with hoop lubrication groove (10) between twice high-pressure rotational combined seal ring (11), turning axle (1) is provided with axial oil leak hole (9), axial oil leak hole (9) is communicated with hoop lubrication groove (10).
2. 6 tonnes of wheeled excavator center-rotary joints according to claim 1, it is characterized in that: annular gas tank (4) is arranged on the top of revolving shell (2), annular oil groove (3) is arranged on the bottom of revolving shell (2).
3. 6 tonnes of wheeled excavator center-rotary joints according to claim 1, is characterized in that: revolving shell (2) inwall two ends are provided with low pressure O RunddichtringO (7).
4. 6 tonnes of wheeled excavator center-rotary joints according to claim 3, is characterized in that: low pressure O RunddichtringO (7) inner side of lower end is provided with support ring (8).
5. 6 tonnes of wheeled excavator center-rotary joints according to claim 1, it is characterized in that: end cap (5) lower end surface contacts with turning axle (1) upper-end surface, and end cap (5) and turning axle (1) are connected by screw.
6. 6 tonnes of wheeled excavator center-rotary joints according to claim 1, is characterized in that: the shaft shoulder face of turning axle (1) is provided with circular groove (6), and circular groove is coated with lubricating grease in (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520655802.6U CN205001708U (en) | 2015-08-27 | 2015-08-27 | 6 tonne pneumatic tyred excavator uses central swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520655802.6U CN205001708U (en) | 2015-08-27 | 2015-08-27 | 6 tonne pneumatic tyred excavator uses central swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001708U true CN205001708U (en) | 2016-01-27 |
Family
ID=55158596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520655802.6U Expired - Fee Related CN205001708U (en) | 2015-08-27 | 2015-08-27 | 6 tonne pneumatic tyred excavator uses central swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001708U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838512A (en) * | 2017-02-16 | 2017-06-13 | 贵州詹阳动力重工有限公司 | The sealing structure of the dynamic connector of double car body all-terrain vehicle |
| CN110778823A (en) * | 2019-12-03 | 2020-02-11 | 中国工程物理研究院总体工程研究所 | Bidirectional air-float rotary joint |
| CN111928043A (en) * | 2020-07-31 | 2020-11-13 | 三一汽车制造有限公司 | Center swivel joint, hydraulic control system and work vehicle |
| CN113048303A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Rotary joint and wind driven generator with same |
| CN114809165A (en) * | 2022-04-20 | 2022-07-29 | 太原重工股份有限公司 | Central pivot device of mining mechanical forward shovel type excavator |
-
2015
- 2015-08-27 CN CN201520655802.6U patent/CN205001708U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838512A (en) * | 2017-02-16 | 2017-06-13 | 贵州詹阳动力重工有限公司 | The sealing structure of the dynamic connector of double car body all-terrain vehicle |
| CN106838512B (en) * | 2017-02-16 | 2019-04-30 | 贵州詹阳动力重工有限公司 | The sealing structure of the dynamic connector of double car body all-terrain vehicle |
| CN110778823A (en) * | 2019-12-03 | 2020-02-11 | 中国工程物理研究院总体工程研究所 | Bidirectional air-float rotary joint |
| CN113048303A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Rotary joint and wind driven generator with same |
| CN111928043A (en) * | 2020-07-31 | 2020-11-13 | 三一汽车制造有限公司 | Center swivel joint, hydraulic control system and work vehicle |
| CN111928043B (en) * | 2020-07-31 | 2022-01-25 | 三一汽车制造有限公司 | Center swivel joint, hydraulic control system and work vehicle |
| CN114809165A (en) * | 2022-04-20 | 2022-07-29 | 太原重工股份有限公司 | Central pivot device of mining mechanical forward shovel type excavator |
| CN114809165B (en) * | 2022-04-20 | 2024-04-02 | 太原重工股份有限公司 | Central pivot device of mining mechanical front shovel type excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20210827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |